CN103067655A - System and method of controlling video camera device - Google Patents

Abstract

Disclosed are a system and a method of controlling a video camera device. The system and the method of controlling the video camera device are used for a monitoring host which is connected with a plurality of sound receiving devices. The system comprises a sound detecting module, a sound source direction determining module, and a lens adjusting device, wherein the sound detecting module is used for controlling the plurality of sound receiving devices to conduct real-time detection for sound signals produced in a certain monitoring area to obtain the sound signals in the monitoring area, the sound source direction determining module is used for inputting all the sound signals obtained by all the sound receiving devices to a sound source direction sensor to conduct analysis and the sound source direction sensor can determine the direction of the sound signals in the monitoring area, and the lens adjusting device is used for sending control instructions to the video camera device to control the video camera device to adjust the position of the lens of the video camera device to obtain real-time images in the direction of the sound signals according to the direction of the sound signals in the monitoring area. The invention further provides the method of controlling the video camera device.

Description

The system and method for control camera device

Technical field

The present invention relates to the imaging monitoring technology, relate in particular to a kind of system and method for controlling camera device.

Background technology

Camera device is widely used in the monitoring field so that specific guarded region is carried out imaging monitoring.Traditional camera device generally be by the exclusive controller of monitor staff by the operation camera device to video camera be rotated, the operations such as translation, inclination or convergent-divergent, to obtain the image of special scenes in the guarded region.In addition, also can set camera device, so that it can be regularly towards shift actions such as being rotated all around of guarded region, so that whole guarded region is carried out imaging monitoring.Yet when emergency situations occurring in the guarded region, said method can't use camera device in time to discover the unusual of emergency situations position, has reduced the fail safe of imaging monitoring.

Summary of the invention

In view of above content, be necessary to provide a kind of system that controls camera device, be applied in the monitoring host computer, this monitoring host computer connects a plurality of radio reception devices.This system comprises: the sound detecting module is used for controlling described a plurality of radio reception device the voice signal that produces in the specifically monitored zone is carried out detecting real-time, to obtain the voice signal in this guarded region; The sound source direction determination module inputs to a sound source direction transducer for the voice signal that each radio reception device is obtained and analyzes, and determines the direction of this voice signal in guarded region by this sound source direction transducer; And lens regulating module, be used for according to the direction of described voice signal at guarded region, sending controling instruction is to camera device, and the control camera device is adjusted the position of the camera lens of this camera device, to obtain the real-time imaging of described voice signal place direction.

Also be necessary to provide a kind of method of controlling camera device, be applied in the monitoring host computer, this monitoring host computer connects a plurality of radio reception devices.The method comprises: sound detecting step, and control described a plurality of radio reception device the voice signal that produces in the specifically monitored zone is carried out detecting real-time, to obtain the voice signal in this guarded region; The sound source direction determining step, the voice signal that each radio reception device is obtained inputs to a sound source direction transducer and analyzes, and determines the direction of this voice signal in guarded region by this sound source direction transducer; And camera lens set-up procedure, according to the direction of described voice signal in guarded region, sending controling instruction is to camera device, and the control camera device is adjusted the position of the camera lens of this camera device, to obtain the real-time imaging of described voice signal place direction.

Compared to prior art, the present invention controls the system and method for camera device, use the sound source direction transducer to confirm the sound source direction that monitoring scene is interior, then adjust the lens direction of camera device according to sound source direction, obtain the real-time imaging at described sound source position place, in time to discover the situation that occurs in the monitoring scene, improved the fail safe of imaging monitoring.

Description of drawings

Fig. 1 is the hardware schematic diagram of the present invention's system running environment of controlling camera device.

Fig. 2 is the schematic diagram of voltage signal that the obtained voice signal of radio reception device among Fig. 1 is converted to.

Fig. 3 is the flow chart that the present invention controls the method preferred embodiment of camera device.

The main element symbol description

Monitoring host computer	1
		Camera device	2
Theradio reception device	3
		Control system	10
Memory	11
		Processor	12
The sound source direction transducer	13
		Thesound detecting module	101
The sound sourcedirection determination module	102
		Lens regulating module	103

Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.

Embodiment

As shown in Figure 1, be the hardware schematic diagram of the present invention's system running environment of controlling camera device.The system 10(of this control camera device is hereinafter to be referred as "control system 10 ") be installed in the monitoring host computer 1.Monitoring host computer 1 is connected by the data wire electronics with a camera device 2, or connects by network service, to carry out imaging monitoring by 2 pairs of specific guarded regions of this camera device.In addition, this monitoring host computer 1 also is connected with a plurality ofradio reception devices 3, with the sound of detecting in guarded regions by these a plurality of radio reception devices 3.Thisradio reception device 3 can be microphone, and especially, thisradio reception device 3 has certain party tropism's uni-directional microphone for the sound collecting scope.

Described camera device 2 can be the PTZ camera device that patrols turntable camera device, fire ball camera device (SpeedDome) or have translation (Pan), inclination (Tilt), convergent-divergent (Zoom) function.This camera device 2 comprises that at least a driver (such as CD-ROM drive motor) or drive circuit move with the camera lens that drives this camera device 2, thereby adjusts the shooting direction of this camera device 2.

Described a plurality ofradio reception device 3 can be evenly distributed in the described guarded region, or is installed on the camera device 2, forms an array type audio signal reception device, so that the voice signal that any direction was produced in the described guarded region is detected.

Described monitoring host computer 1 comprises memory 11,processor 12, sound source direction transducer 13 and described control system 10.Thiscontrol system 10 comprisessound detecting module 101, sound sourcedirection determination module 102 and lens regulating module 103.Thiscontrol system 10 can be stored in the memory 11, and is controlled the execution of thesecontrol system 10 by processor 12.In the present embodiment, this monitoring host computer 1 can be the control appliances such as computer, server.

Describedsound detecting module 101 is used for controlling the voice signal that produces in 3 pairs of described guarded regions of described a plurality of radio reception device and carries out detecting real-time, to obtain the voice signal in this guarded region.

Described sound sourcedirection determination module 102 is used for that eachradio reception device 3 obtained voice signal is inputed to described sound source direction transducer 13 to be analyzed, and determines the direction of this voice signal in guarded region by this sound source direction transducer 13.

In the present embodiment, this sound source direction transducer 13 can carry out the identification of sound source direction according to describedradio reception device 3 collected voice signals, thereby determines the direction of the sound that produces in the guarded region.Particularly, this sound source direction transducer 13 can use the voltage amplitude comparison method that the direction of described voice signal is carried out identification.Also can utilizeradio reception device 3 obtained voice signals to do Fourier Tranform, or find out the time delay characteristic of eachradio reception device 3 with the spectrum energy of eachradio reception device 3, tell again the direction of this voice signal in conjunction with modes such as wave beam synthetic method, location algorithm, space average method or gyrator space laws.

The below does brief description as an example of the voltage amplitude comparison method example to the operation principle of sound source direction transducer 13.When guarded region had sound to produce, sound source direction transducer 13 was obtained the voice signal that eachradio reception device 3 detects.As shown in Figure 2, suppose that theradio reception device 3 that the present embodiment uses is the microphone of three single directional properties: MIC1, MIC2 and MIC3, when guarded region had sound to produce, these three microphones were obtained respectively one group of voice signal and are inputted sound source direction transducer 13.Then, this sound source direction transducer 13 all converts every group of voice signal to voltage signal.For example, the oscillogram of the voltage signal that converts to of the received voice signal of described MIC1, MIC2 and MIC3 is respectively shown in the V1 among Fig. 2, V2 and V3.Wherein, V1 represents voltage oscillogram corresponding to the received voice signal of MIC1, and V2 represents voltage oscillogram corresponding to the received voice signal of MIC2, and V3 represents voltage oscillogram corresponding to the received voice signal of MIC3.At last, the peak value of 13 more every groups of voltage signals of sound source direction transducer, the direction atradio reception device 3 places that the voltage signal of peak value maximum is corresponding is as the direction of described voice signal.In Fig. 2, the peak value of described voltage signal V1 is maximum, and the direction at so described MIC1 place is the direction of this voice signal.

Described lens regulatingmodule 103 is used for according to the direction of described voice signal at guarded region, send a control command to camera device 2, the position of the camera lens of 2 pairs of these camera devices 2 of control camera device is adjusted, to obtain the real-time imaging of described voice signal place direction.Particularly, when camera device 2 received control command, camera device 2 namely drove camera lens by built-in driver or drive circuit and moves, to reach the purpose of adjusting the lens shooting direction.

As shown in Figure 3, be the flow chart that the present invention controls the method preferred embodiment of camera device.

Step S01, the voice signal that produces in 3 pairs of described guarded regions of the describedsound detecting module 101 described a plurality of radio reception devices of control carries out detecting real-time, to obtain the voice signal that produces in this guarded region.

Step S02, described sound sourcedirection determination module 102 inputs to described sound source direction transducer 13 with eachradio reception device 3 obtained voice signal and analyzes, and determines the direction of this voice signal in guarded region by this sound source direction transducer 13.

Step S03, described lens regulatingmodule 103 is used for according to the direction of described voice signal at guarded region, sends a control command to camera device 2.

Step S04, described camera device 2 is adjusted the position of the camera lens of this camera device 2 according to the control command that receives, to obtain the real-time imaging of described voice signal place direction.

Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.

Claims (10)

Translated fromChinese

1.一种控制摄影机装置的方法，应用于监控主机中，该监控主机连接多个收音器，其特征在于，该方法包括：1. A method for controlling a video camera device, which is applied in a monitoring host, and the monitoring host is connected to a plurality of radios, characterized in that the method comprises:声音侦测步骤，控制所述多个收音器对特定监控区域内所产生的声音信号进行实时侦测，以取得该监控区域内的声音信号；The sound detection step is to control the multiple receivers to detect the sound signals generated in a specific monitoring area in real time, so as to obtain the sound signals in the monitoring area;音源方向确定步骤，将每个收音器所取得的声音信号输入至一个音源方向传感器进行分析，通过该音源方向传感器确定该声音信号在监控区域中的方向；及The step of determining the sound source direction is to input the sound signal obtained by each receiver to a sound source direction sensor for analysis, and determine the direction of the sound signal in the monitoring area through the sound source direction sensor; and镜头调整步骤，根据所述声音信号在监控区域中的方向，发送控制指令至摄影机装置，控制摄影机装置对该摄影机装置的镜头的位置进行调整，以取得所述声音信号所在方向的实时影像。The lens adjustment step is to send a control command to the camera device according to the direction of the sound signal in the monitoring area, and control the camera device to adjust the position of the lens of the camera device to obtain a real-time image in the direction of the sound signal.2.如权利要求1所述的控制摄影机装置的方法，其特征在于，音源方向传感器通过以下步骤确定所述声音信号在监控区域中的方向：2. The method for controlling a camera device according to claim 1, wherein the sound source direction sensor determines the direction of the sound signal in the monitoring area through the following steps:将每个收音器所取得的声音信号转换成电压信号；及convert the sound signal obtained by each receiver into a voltage signal; and比较转换后的每个电压信号的峰值，将峰值最大的电压信号对应的收音器所在的方向作为所述声音信号在监控区域中的方向。The peak value of each converted voltage signal is compared, and the direction of the receiver corresponding to the voltage signal with the largest peak value is taken as the direction of the sound signal in the monitoring area.3.如权利要求1所述的控制摄影机装置的方法，其特征在于，所述收音器为声音收集范围具有特定方向性的单指向麦克风。3. The method for controlling a camera device according to claim 1, wherein the microphone is a unidirectional microphone with a specific directionality in a sound collection range.4.如权利要求1所述的控制摄影机装置的方法，其特征在于，所述摄影机装置为巡转台摄影机装置、快速球摄影机装置、或具有平移、倾斜、缩放功能的PTZ摄影机装置。4 . The method for controlling a camera device according to claim 1 , wherein the camera device is a tour table camera device, a fast ball camera device, or a PTZ camera device with functions of panning, tilting and zooming.5.如权利要求1所述的控制摄影机装置的方法，其特征在于，所述摄影机装置至少包括一个驱动该摄影机装置的镜头进行移动的驱动器或驱动电路，以调整该摄影机装置的拍摄方向。5 . The method for controlling a camera device according to claim 1 , wherein the camera device includes at least one driver or drive circuit for driving the lens of the camera device to move, so as to adjust the shooting direction of the camera device. 6 .6.一种控制摄影机装置的系统，应用于监控主机中，该监控主机连接多个收音器，其特征在于，该系统包括：6. A system for controlling a camera device, which is applied in a monitoring host, and the monitoring host is connected to a plurality of radios, and it is characterized in that the system includes:声音侦测模块，用于控制所述多个收音器对特定监控区域内所产生的声音信号进行实时侦测，以取得该监控区域内的声音信号；The sound detection module is used to control the plurality of receivers to detect the sound signals generated in a specific monitoring area in real time, so as to obtain the sound signals in the monitoring area;音源方向确定模块，用于将每个收音器所取得的声音信号输入至一个音源方向传感器进行分析，通过该音源方向传感器确定该声音信号在监控区域中的方向；及A sound source direction determining module, which is used to input the sound signal obtained by each receiver to a sound source direction sensor for analysis, and determine the direction of the sound signal in the monitoring area through the sound source direction sensor; and镜头调整模块，用于根据所述声音信号在监控区域中的方向，发送控制指令至摄影机装置，控制摄影机装置对该摄影机装置的镜头的位置进行调整，以取得所述声音信号所在方向的实时影像。The lens adjustment module is used to send control instructions to the camera device according to the direction of the sound signal in the monitoring area, and control the camera device to adjust the position of the lens of the camera device to obtain a real-time image of the direction of the sound signal .7.如权利要求6所述的控制摄影机装置的系统，其特征在于，音源方向传感器通过以下步骤确定所述声音信号在监控区域中的方向：7. The system for controlling a camera device as claimed in claim 6, wherein the sound source direction sensor determines the direction of the sound signal in the monitoring area through the following steps:将每个收音器所取得的声音信号转换成电压信号；及convert the sound signal obtained by each receiver into a voltage signal; and比较转换后的每个电压信号的峰值，将峰值最大的电压信号对应的收音器所在的方向作为所述声音信号在监控区域中的方向。The peak value of each converted voltage signal is compared, and the direction of the receiver corresponding to the voltage signal with the largest peak value is taken as the direction of the sound signal in the monitoring area.8.如权利要求6所述的控制摄影机装置的系统，其特征在于，所述收音器为声音收集范围具有特定方向性的单指向麦克风。8 . The system for controlling a camera device according to claim 6 , wherein the microphone is a unidirectional microphone with a specific directionality in a sound collection range.9.如权利要求6所述的控制摄影机装置的系统，其特征在于，所述摄影机装置为巡转台摄影机装置、快速球摄影机装置、或具有平移、倾斜、缩放功能的PTZ摄影机装置。9. The system for controlling a camera device according to claim 6, wherein the camera device is a camera device of a tour table, a fast ball camera device, or a PTZ camera device with functions of panning, tilting and zooming.10.如权利要求6所述的控制摄影机装置的系统，其特征在于，所述摄影机装置至少包括一个驱动该摄影机装置的镜头进行移动的驱动器或驱动电路，以调整该摄影机装置的拍摄方向。10 . The system for controlling a camera device as claimed in claim 6 , wherein the camera device includes at least one driver or drive circuit for driving the lens of the camera device to move, so as to adjust the shooting direction of the camera device. 11 .

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